The Advantech VWR Stopper is an essential laboratory accessory designed for secure sealing of various containers. Available in a convenient pack of 100, these white stoppers are made from high-quality materials, ensuring durability and reliability. With a size of 10/30, they fit a wide range of standard lab glassware, providing an airtight seal that helps maintain sample integrity. Ideal for use in research, clinical, and industrial settings, these stoppers are perfect for preventing contamination and evaporation. Stock up on these essential lab supplies and ensure your experiments run smoothly!